Search a number
-
+
2120102071 is a prime number
BaseRepresentation
bin111111001011110…
…0011000010110111
312110202100100021221
41332113203002313
513320221231241
6550213051211
7103352366413
oct17627430267
95422310257
102120102071
1199881907a
124b2026b07
1327a308889
141617ddd43
15c61d85d1
hex7e5e30b7

2120102071 has 2 divisors, whose sum is σ = 2120102072. Its totient is φ = 2120102070.

The previous prime is 2120102063. The next prime is 2120102081. The reversal of 2120102071 is 1702010212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2120102071 - 23 = 2120102063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120102041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060051035 + 1060051036.

It is an arithmetic number, because the mean of its divisors is an integer number (1060051036).

Almost surely, 22120102071 is an apocalyptic number.

2120102071 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120102071 is an equidigital number, since it uses as much as digits as its factorization.

2120102071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 2120102071 is about 46044.5661397738. The cubic root of 2120102071 is about 1284.6522743058.

Adding to 2120102071 its reverse (1702010212), we get a palindrome (3822112283).

The spelling of 2120102071 in words is "two billion, one hundred twenty million, one hundred two thousand, seventy-one".